Physics
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992soph..140..269v&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 140, no. 2, Aug. 1992, p. 269-287. Research supported by NSF and NASA.
Physics
9
Computerized Simulation, Coronal Loops, Solar Magnetic Field, Solar Prominences, Chromosphere, Dynamic Models, Gravitational Effects, Magnetohydrodynamic Waves, Self Consistent Fields
Scientific paper
The results of a model dynamic simulation of the formation and support of a narrow prominence at the apex of a coronal magnetic loop or arcade are described. The condensation process proceeds via an initial radiative cooling and pressure drop, and a secondary siphon flow from the dense chromospheric ends. The antibuoyancy effect as the prominence forms causes a bending of the confining magnetic field, which propagates toward the semirigid ends of the magnetic loop. Thus, a wide magnetic 'hammock' or well (of the normal-polarity Kippenhahn-Schlueter-type) is formed, which supports the prominence at or near the field apex. The simplicity of this 1.5-dimensional model, with its accompanying diagnostics, elucidates the various contributions to the nonlinear dynamics of prominence condensation and levitation.
Drake James F.
Mok Yung
van Hoven Gerard
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